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A "referrer" is the information passed along by a web browser that references the Web URL you linked from, and it is automatically gathered by our Web server. This information is used to identify broad demographic trends that may be used to provide information tailored to your interests.
Environment variables we gather include time, type of Web browser being used, the operating system/platform, and CPU speed. This information is used only for broad demographic information. This information is used by us in identifying broad demographic trends and may be used to provide information tailored to your interests.